Dorsal root potentials and ventral root reflexes evoked by nonmyelinated fibers.
Electrical stimulation of C-fibers in the cat superficial peroneal nerve, with the A-fibers either conducting or blocked by cold, evoked dorsal root potentials having the same polarity as those evoked by A-fibers. Ventral root reflexes evoked by A-fibers were facilitated by a pure C-volley in the same or another nerve, but dorsal root potentials evoked by A-fibers were reduced by isolated dorsal root potentials from C-fibers. In the absence of anesthetics, single C-volleys produced brisk and prolonged reflex discharges in ventral roots.
D000818:Animals; D002415:Cats; D004558:Electric Stimulation; D005071:Evoked Potentials; D009046:Motor Neurons / Q000502:physiology*; D009431:Neural Conduction; D009474:Neurons / Q000502:physiology*; D012018:Reflex; D012584:Sciatic Nerve; D012677:Sensation; D013127:Spinal Nerves / Q000502:physiology*